What is the value of x in the triangle? A: 289 B: 17 C: 15 D: 14.2
1 answer:
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X - 
x + 4 = - 
First, simplify
to 
/ Your problem should look like: x - + 4 = -
Second, simplify x - + 4 to 
+ 4 / Your problem should look like: 
+ 4 = 
Third, regroup terms. / Your problem should look like: 4 -
= -
Fourth, multiply both sides by 2. / Your problem should look like: 8 - x = -1
Fifth, subtract 8 from both sides. / Your problem should look like: -x = -1 - 8
Sixth, simplify -1 - 8 to -9. / Your problem should look like: -x = -9
Seventh, multiply both sides by -1. / Your problem should look like: x = 9
Answer: x = 9
First, simplify
Second, simplify x -
Third, regroup terms. / Your problem should look like: 4 -
Fourth, multiply both sides by 2. / Your problem should look like: 8 - x = -1
Fifth, subtract 8 from both sides. / Your problem should look like: -x = -1 - 8
Sixth, simplify -1 - 8 to -9. / Your problem should look like: -x = -9
Seventh, multiply both sides by -1. / Your problem should look like: x = 9
Answer: x = 9